500 prompts matching "Chemistry at work: The petrochemicals made from oil and gas"
Practice set: Extraction by electrolysis, and when it is necessary
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Practice set: Removing temporary hardness
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Exam practice: Recording and averaging concordant titres
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Spot my mistake: Including a pure solid in an equilibrium expression
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Spot my mistake: Using bond enthalpies for a reaction involving liquids
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Spot my mistake: Assuming every coloured substance is a dye
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Spot my mistake: Describing painting as a chemical method of rust prevention
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Exam practice: Heavy metal pollution and its effects on health
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Spot my mistake: Confusing cement with concrete
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Quiz me: Soaps, detergents, dyes and pigments reviewed
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Quiz me: Rapid recall across kinetics, equilibrium and energetics
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Quiz me: Mole and mass conversions under time pressure
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Quiz me: Converting between mass, moles, volume and particles
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Spot my mistake: Explaining a group trend by nuclear charge alone
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Exam practice: Metallic bonding and hydrogen bonding
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Spot my mistake: Describing a polar covalent bond as ionic
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Quiz me: Molar mass and how it is obtained
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Exam practice: Graham's law of diffusion
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Spot my mistake: Using pressure in millimetres of mercury with R in SI units
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Exam practice: Solubility expressed in different units
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